Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Data Model Development and Validation for Product Data Exchange



Mary Mitchell, Y Yang, S Ryan, B Martin


Data modeling techniques have been used extensively in the development of an emerging standard for the exchange of product design and manufacturing information. PDES, Inc., an industry cooperative, is applying resources to accelerate the development and implementation of this emerging standard, the Product Data Exchange Specification (PDES). An objective of PDES, Inc. is to validate the completeness and usability of the specification. This paper describes some strategic and technical issues with directly impact this effort. Experience which actual validation activities identified the need to develop additional requirements documentation. This paper serves as the background for a series of papers which will describe the actual methods and processes used in the requirements specification activity. Three types of results came out of this requirements activity. The form of the project deliverables changes considerably. Insights on conducting requirements activities were identified. New issues on the relationship of this work to portions of the specification were identified.
NIST Interagency/Internal Report (NISTIR) - 4241
Report Number


data model development, PDES, product data exchange, STEP


Mitchell, M. , Yang, Y. , Ryan, S. and Martin, B. (1990), Data Model Development and Validation for Product Data Exchange, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed April 16, 2024)
Created December 31, 1989, Updated October 12, 2021